I’ve mentioned before that I think iPhone app settings should be accessible from within the app. Louis Mantia explains why the Apple way is wrong:
On iPhone, you can have one application open at a time. … That means [users] have to quit your application, go to the Settings app (which is most likely on a different home screen page), find the application in the list…, change a setting, quit Settings, find the application again, open it, and see if it did what you wanted. … Talk about inconvenient.
Chris Clark has some further ideas about noble and ignoble settings, though I don’t think I could go as far as him. Except about the Gruber sycophants.